DE1188990B - Device for changing the bobbins in spinning machines, in particular ring spinning machines and twisting machines - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

D02d

German KL: 76 c -26/01

Number: 1188 990

File number: D 29600 VII a / 76 c

Filing date: December 17, 1958

Opening day: March 11, 1965

The invention relates to a device for pulling out full bobbins and attaching empty ones Bobbin tubes in spinning machines, in particular ring spinning machines and twisting machines, and relates to the type of bobbin changing devices that have one above the spindles, opposite the spindle bench, lowerable and liftable carrier with a set of at a distance of Spindles arranged holders for full bobbins and holders for empty bobbin tubes.

In a known device of this type, although the holder for full bobbins with a provided by air pressure actuated device for holding or releasing the coils and all holders for full bobbins are connected to a common compressed air line provided with a control valve. However, the empty bobbin tubes are grooved against an upper stop by means of retaining springs held by friction and thus only released when the bobbin is put on the spindles the friction between the bobbin case and spindle is greater than the friction of the bobbin case springs holding onto the carrier. But now the length and the inner diameter of the Spool tube tolerances, so that a large number of spool tubes can be placed at the same time some bobbin tubes are firmly seated on the spindle, while others have not yet received sufficient frictional engagement on the spindles to take off the retaining springs on the carrier to be pulled out, so that the operator when putting on the bobbin case has to help with your hand. However, it is desirable to change the coils to be carried out completely automatically.

In the exchange device according to the invention is provided for this purpose that each Holder for empty bobbin tubes also connected to a common fluid or air line with control valve connected ejector and push-out device operated by fluid pressure, preferably air pressure for the empty bobbin case.

In the design of the replacement device according to the invention, when the empty bobbin tubes are put on, the different distances of the bobbin tubes given by the length and inner diameter tolerance until they are firmly seated on the spindle have no effect on the seat of the empty bobbin tube on the spindles. The resilient pressure exerted by the compressed air ensures that all of the bobbin tubes are firmly seated on the associated spindle. In the embodiment according to the invention, the off device can therefore be used for replacing the bobbins
in spinning machines, in particular ring spinning machines and twisting machines

Applicant:

Deering Milliken Research Corporation,

Spartanburg, S. C. (V. St. A.)

Representative:

Dr.-Ing. F. Wuesthoff, Dipl.-Ing. G. Pulse and
Dipl.-Chem. Dr. rer. nat. E. Frhr. v. Bad luck man,
Patent Attorneys, Munich 9, Schweigerstr. 2

Named as inventor:

Robert M. Ingham, Spartanburg, S. C.

(V. St. A.)

Claimed priority:
V. St. v. America December 17, 1957
(703 353)

change of the coils are carried out completely automatically, without any help from the operator with the hand.

It is particularly useful to use the jointly actuatable holder for the full bobbins and the jointly operable holder for the empty bobbin tubes in a fixed position relative to the carrier and each both in the longitudinal direction and in the transverse direction offset to each other and the device so that the carrier is the distance between the holders of one set and the holders of the other Set can be moved both lengthways and crossways.

In the known device, a number of µm corresponding to the number of spindles is in the carrier 180 ° rotatable heads, each with a holder for a full bobbin and a holder for an empty one Coil sleeve provided. When both holders are actuated by fluid pressure, the Fluid pressure but much easier if the holder is arranged in a fixed position relative to the carrier and, in order to optionally place one or the other set of holders opposite the spindles, the carrier is moved by the distance between the holders. With the known arrangement, in which the heads are each equipped with a holder for a full bobbin and a holder for an empty bobbin

509 518/262

3 4

sleeve can be rotated by 180 °, determines the place, metal or other material made, when held by the holders full and substantially rigid tubular member 23, the empty bobbins while simultaneously rotating all of them with the carrier 11 through a front bracket 25 Heads needed is the spacing of the spindles. At and a rear bracket 27 is essentially rigid which is connected in the longitudinal and in the transverse direction offset. The pipe 23 is at the top and messy the holder on the carrier and the other end open, and inside it is a Exercise of the wearer in the longitudinal and in the transverse direction section of an elastic, essentially air-permeable on the other hand, the spindles so tightly arranged impermeable hose 29 made of rubber or are that just arranged to wrap the synthetic rubber with the upper and Coils required space between the spindles io the lower end of the tube 23 in the shown is available. Way, e.g. B. by means of two expanding rings 31 and 33,

In a preferred embodiment, the Aus is combined in such a way that none at the fastening points

Exchange device according to the invention is ais air can escape. Between the annular

Fluid supply to the holders of the cavity of the walls of the rubber hose 29 and the rigid

Carrier used. 15 tube 23 is thus a closed ring-shaped

The inventive design of the device chamber 35 is present (FIG. 2). Each of the ring-shaped chambers 35 provided for the exchange of the bobbins in which the different gripper stations 19 are inevitably controlled jointly by all of the holders has the particular advantage that when the ring rail is moved, a common compressed air supply line 37 has the particular advantage that not only the replacement 20 connected; Each of these connections includes one of the bobbins, but also the rinsing of the yarn branch line 39 with a fully automatic section of the tube 19 built into the center of the new bobbin inlet pipe 39 α can be by at the end of the winding process and an intermediate piece 39 b made of flexible and prior to resilient gripping of the yarn tubing which simplifies the assembly and disassembly of the full bobbins below the point of assembly. Between which the package is gripped, a number of a compressed air source 43 and the common supply of turns is formed, so that after the guide line 37 a suitable control valve 41 detecting the package and lifting the full one is provided so that the chambers 35 after winding a part of this Windings unscrewed wish in the one shown in FIG. 2 in a form around the spindle and then blow the empty 30 or relax the pressure in the chambers bobbin tubes located on the spindle so that the elastic hoses 29 pushed their normal turns and drawn onto the spindle in a relaxed position take as shown in FIG. 1 must be pressed so that when it is lifted again the is shown. By inflating the elastic, full bobbin tube, the hose ring 29 connected to the spindle and the yarn that binds it tears off. The elastic ring becomes the extension of the chamber 35

The invention will thus be seen in the following with reference to an expedient, flexible one

matic drawings on several execution ring-shaped grippers that can be used to

examples explained in more detail. to grasp a full package P and remove it from

F i g. 1 shows in a schematic, partially as the relevant spindle 17 to be withdrawn, with

Sectional front view of part of a 40 of the looper adjusts the shape of the package. At-

carrier according to the invention with the holders for the face of the essentially simultaneous

Bobbin tubes and bobbins of thread; Inflation of all for withdrawing coils

F i g. 2 is an axial section along the line 2-2 serving gripper 19 one can the full bobbins

in Fig. 1 and shows a bobbin holder in a gentle manner along an entire side of the machine

blown state, which here a dashed line but can be reliably removed by touching the carrier

holds interpreted package of twine; 11 z. B. by means of spaced apart

F i g. 3 to 8 illustrate the replacement of neter ropes 45 (Fig. 1), these ropes,

the coils; those with a suitable hand-operated or power-operated

F i g. Figure 9 shows a modified arrangement in which winches are in communication, actuated when

the bobbin holder is inflated transversely to the longitudinal axis of the carrier against the elastic ring-shaped gripper 29

are offset from one another. are and have each detected the full bobbins P.

According to FIG. 1 is a horizontal, in the The distances between adjacent longitudinal direction extending carrier 11 under- grippers 19 for pulling off bobbins corresponding to that it can be moved vertically above one side of a spinning machine or the distances between adjacent twisting machine to 55 spindles of the spinning or twisting machine. Holders 21 are provided so that the full package P can be withdrawn from the spinning bobbins one after the other and placed on the spindles 17 and empty bobbin tubes B can be placed on. In Fig. 1 recognizes bobbin case can grasp at one end, in one end of the carrier 11, the two grippers 19 of a corresponding number are provided; these for full yarn packages and two holders 21 for mounting 60 holders are shown in FIG. 1 and 3 to 7 each carries between the heads of empty bobbin tubes; Arranged over the grippers for the full bobbins, the length of the carrier 11 is several and the distances between the holders 21 are distributed around the gripper 19 and holder 21 so that their address corresponds to the distances between the grippers 19.
number of the number of all or part of the each of these holders 21 for one end of a spindle on one side of the spinning machine 15 empty bobbin tube comprises an annular opening, receiving part which in the preferred embodiment

As best seen in Fig. 1 and 2, for example an inverted cup 47 made of rubber

summarizes each gripper 19 for a full bobbin one from od. Like. Forms which on the carrier 11 z. B. by means of

Screws 49 is attached and at its lower end has a widening jacket 51, which serves to insert the upper end of an empty bobbin tube B into the resilient gripper portion 53 of the cup 47, where the end of the bobbin with an ejector and stop disk 55 in Contact comes, which is guided by a rod 57, at the lower end of which the disc 55 can be attached or formed. The yielding one

It is necessary to lift the carrier 11 together with the grippers 19 and the holders 21 and then move it in the longitudinal direction by a distance corresponding to half the distance between two adjacent spindles, so that the empty bobbin tubes B through the holder 21 to align with the corresponding empty spindles 17 are brought. Then you can the carrier 11 together with the full bobbins still hooked on grippers

Gripper section 53 can lower an elastic, smooth interior 19 again around the empty bobbin tube B , but it is shown in FIG. 1 preferential to put on the bare spindles 17, whereupon wise with spaced-apart annular, elastic rings 11 converging upwards in the closed carrier are fed to the chamber 13 via the line 71 compressed air, which is provided in the lips or ridges 59, the are formed on the inner-mentioned way to the chambers 75 of the individual wall, so that the head of an emptyu 15 holder 21 for the empty bobbin tubes arrives. After the bobbin tube can be easily inserted, with the firm pushing the empty bobbin tubes on, however, depending on the requirements of the spindles in question or essentially simultaneously with the application, a comparatively greater force of this process can be required to pull the bobbin out of the carrier 11 again To lift the holder and move it into a suitable position, remove it. The rod 57 is inserted in a larger 20 in which the full package P has been removed and a diameter opening 61 in the upper new set of empty bobbin tubes B in the holder end of the cup 47 and in the adjacent wall 21. The use of this elastic carrier 11 and in a holder surrounding the rod for the empty bobbin tubes enables the rubber sleeve 63 to be vertically movable; the essential advantage, because the bobbin tubes B of the carrier 11 are inserted through the pneumatic rubber sleeve is actuated in an opening in the upper wall 25 rods. The rod 57 and the inevitably placed on the associated spindles, disk 55 comprehensive unit can be in one
by a split pin 67 according to a certain extent
move down; when the aggregate is at its deepest
When the position is reached, the cotter pin is supported on one of the 30
the rubber sleeve 63 resting metal disc 69 from.
So that the empty bobbin tubes B from the Haltein
released and on the relevant spindles of the
Spinning or twisting machine can be attached, a pneumatic device is provided, 35 thing this method can be used in many cases around the rod and disk unit 57, 55 in other bobbins. According to this association at the desired point in time, the empty bobbin tubes B 'will be issued first. In order to enable the carrier 11 'in an expedient and economical manner in the manner before every second station that all holders 21 for holders 21' for the empty bobbin tubes are pneumatically actuated and then the carrier is moved In order to align the support 11 as a hollow, at both ends the grippers 19 'for the full bobbins on the spindles closed support of rectangular cross-section on which the full bobbins P' sit. A suitable feed line 71 with the thread bodies are wound on their completion so a control valve 73 leads from the compressed air source that a number of transfer winches 43 to the chambers formed by the hollow carrier 11 fertilize 85 'around the thinner neck 81' of the bobbin merchant 13 which is placed around the openings 61 with the upper sleeve, namely between the chambers 75 of the individual holders 21 for the empty thick bobbin base 83 'and the package P' or bobbin tubes. In order to seal each chamber at the transition point between the package 75 essentially airtight, the largest possible number of rubber washers 77 are arranged on and the bobbin base (see Fig. 3), so that at each of the top of the disk 55 a cup-shaped yarn end which the inner guide turns is available and thus wall a smooth cylinder insert 79 made of a plastic as large as possible number of yarn turns or another suitable material, is pulled around the spindle when the full one is inserted into the cup 47, touches. How package P 'opposite the spindle by a beaus F i g. 1, the upward movement leads to the right distance being moved vertically upwards, an empty bobbin tube is pushed in 19 'for the full lowing sliding of the cup 47 on the upper bobbins in alignment with the spindles, the end of an empty bobbin tube B is used to ensure that the carrier in the position shown in Fig. 3 disk 55 together with the rod 57 upwards 60 lowered, in which the middle section is moved each until it reaches its uppermost position all the way or the package P 'of the rigid tube 23' and almost; as soon as this is the case, the elastic tube 29 'is surrounded. By the upper end of the empty bobbin tube B within the supply of compressed air via the common tubular gripper section 53, 59 of the cup line 37 'then the grippers for the full 47 in the form shown in FIG. 1, as can be seen, 65 coils are inflated resiliently, whereupon the carrier 11 'is held in place. After the full yarn lift has been drawn off, the full bobbins from the spindles P bobbins from the relevant spindles of the spinning 17 'are drawn off and they are transferred to the one shown in FIG. 4 visible machine by the gripper 19 it is only able to be brought. As one can see from FIG. 4 also

an essentially uniform pressure on the empty bobbin tubes during this process is exercised.

3 to 7 show a method for drawing off full package P 'and for placing empty bobbin tubes B', which is particularly suitable for weft bobbins and the like, in which the diameter increases at the base without a transition; all-

knows, are several yarn turns 85 'originally in the groove at the transition point between the bobbin and the base of the bobbin were lying while the bobbin was being withdrawn from the Spindle has been withdrawn from the former, and these turns form a number of transfer or anchoring turns around the bare Spindle are laid around and are later used to remove the end of the yarn when placing an empty bobbin tube to anchor on the spindle.

Then the carrier 11 'is displaced in the longitudinal direction of the machine 15 in order to align the empty bobbin tubes B' with them above the spindles 17 ', whereupon the carrier according to FIGS. 5 and 6

extra effort on the part of the operator is required to remove or separate the yarn ends. The carrier 11 'with the full bobbins P' is now moved to a suitable dispensing station, where the grippers 19 'for the full bobbins are released so that the full bobbins fall off and can be supplied to further operations.

8 shows a modification of the method according to FIGS. 3 to 7, which is particularly suitable for warp yarn bobbins and the like. In this arrangement, support members, for. B. in the form of blocks 91 ', arranged and formed between the various rings, and these support members is lowered to stretch the empty bobbin tubes on the 15 so up that they put on the lower ends of the spindles concerned. The wearer will assist the bobbins on which the full yarn is lowered until the full bobbins F are wound in the body. The method for pulling off Fig. 6, as can be seen, rest on the usual ring of the bobbins and for placing empty bobbin tubes rail 89 ', while the one on the spindles is similar to that on the basis of FIG. 3 to 7 described, stuck empty bobbin tubes in a higher ao apart from the fact that the full bobbins are through the location. The air pressure is now released in the blocks 91 'or other raised support members under grippers 19' for the full bobbins that are supported, instead of releasing, as in the method of bobbins F , which are on the rail 89 'F i g. 3 to 7 directly on the lower part of the support. The carrier is then supported up to the ring rail 89 '. In this way, F i g. 7 lowered position, in which the grippers 25 you lower the grippers for the full bobbins down to the lower 19 'for the full bobbins each the neck 81' of one end of the bobbins filled with warp yarn, surround the full bobbin F at its lower end. so that the bobbins are gripped so that the lower Then the grippers 19 'for the full bobbin yarn turns are held and inflated again, whereupon the elastic ring 29' lifts the full bobbins during the tearing off of both the yarn package F and the thickened 30 threads after placing the empty bobbin tube base 83 'of the full bobbin PjB', around which long yarn ends cannot form long yarn ends on the spindles. It should be noted that this mode of operation surrounds special bobbins, as well as holding the main yarn body P ' ders for long bobbins and yarn bodies such as warp yarn-forming yarn and further withdrawal of bobbins and the like is suitable, but that they can be prevented from yarn windings (see Sect Fig. 7). In 35, if necessary, it can also be used in other cases. this point in time or already before or something You can see that the above-described

later the holders 21 'for the empty reel device for exchanging reels several sleeves over the interior or the chamber 13' in which offers essential advantages, especially with regard to carrier 11 'compressed air supplied so that the empty on their adaptability and their usefulness bobbin tubes B 'are pushed vigorously onto the associated spindles 40 in machines with small or large spindles. This will preferably be tied; Another advantage is that the flexible gripper 19 'is pneumatically inflated at full time with the inflation or a short time after the permanent ring surface for the full bobbins in its middle section at the same time as the lifting of the carrier 11' and the same full bobbins be detected that the bobbins described are carried out, so that the device can be easily pushed on and that it is possible to use empty bobbin tubes B ' and to eject them, the grippers for the full bobbins and the holders from the grippers 21' during the Lifting of the carrier for the head ends of the empty bobbin tubes is stationary and the full package takes place. to be arranged in a row, with these advantages mainly

The gripping of both the full package P 'in particular can also be attributed to the fact that both the and the spool base 83' are where the 5 ° holders for the ends of the empty bobbin tubes and remaining turns at the base of the package are the pneumatic annular grippers to be detected leads to the fact that these yarn turns of the full bobbins are held alternately at their middle sections, so that they are fixedly arranged in a row between them. Here full bobbins and the associated spindles, it is possible to pull off and put on kenden yarn ends when lifting the full bobbins 55 of the bobbins by means of a simple longitudinal movement with the aid of the carrier relatively briefly torn off and a vertical movement of the joint; in other words, none are formed
relatively long yarn ends between the yarn bodies
and the spindles, as would be the case if the
Package not held in such a manner 60
would that another pulling of yarn from
the packages during the lifting of the carrier
with the twine is prevented. This proves
in the following operations with the

full bobbins as a clear advantage, because there are 65 full bobbins to work; in these cases you can essentially no long gamends are present, which from FIG. 9 apparent modified consich entangled with each other or otherwise exercising struc- ture. With this modification can give rise to malfunctions so that there are no loads. The holders 21 "for the ends of the empty bobbins

Carrier for the holder to hold the empty ones
Bobbins and the grippers to carry out the full bobbins.

In some cases, however, the desired
Package diameter in comparison to the spindle pitch of the machine be so large that it is impossible
or inexpedient, with the straight-line arrangement of the holders and grippers for the empty or

sleeves relative to the grippers 19 ″ for the full bobbins each offset transversely to the longitudinal axis of the carrier arranged; the grippers 19 ″ hang from the joint Support 11 ″ from along its center line downwards, while the holder 21 ″ is opposite to the longitudinal axis of the carrier are transversely offset. The arrangement of the grippers 19 "for the full bobbins along the Center line is the cheapest; because the grippers take up considerably more space in the lateral direction than the holder for the ends of the empty bobbin tubes, and when the grippers are placed off-center were, they would protrude laterally significantly beyond the carrier 11 "; the holder 21" for the empty tubes however, they can be arranged off-center without protruding from the side. Overall, this achieves that the fixed arrangement of alternating holders 21 "and pneumatic grippers 19 "can be maintained without the carrier having to be widened, with the ratio Spindle distances smaller than the package diameter are possible. An advantage of the least possible Width of the carrier is that during the vertical movement of the carrier with the holders and grippers only a minimal lateral movement is required, so that an abutment against protruding Parts of the spinning machine drafting system, creel, etc. is avoided.

Claims (3)

Claims: 30 1. Device for pulling off full bobbins and attaching empty bobbin tubes in spinning machines, in particular ring spinning machines and twisting machines, with an above the spindles arranged opposite the spindle bank lowerable and liftable carrier each with a set of spaced apart from the spindles holders for full bobbins and holders for empty bobbin tubes, in which each holder for full bobbins has a fluid pressure actuated device for holding or releasing the bobbin and all holders for full bobbins are connected to a common fluid supply line provided with a control valve, characterized in that each holder (21) for empty bobbin tubes (B) is also connected to a common fluid or air supply line (71, 13) with a control valve (73) Fluid pressure, preferably air pressure, actuated ejecting and pushing out device (79, 77, 55) for the empty bobbin tube. 2. Apparatus according to claim 1, characterized in that the holder (19 ") for the full bobbins (P) and the holder (21") for the empty bobbin tubes (B) in a fixed position relative to the carrier (U ") and each are arranged offset from one another both in the longitudinal direction and in the transverse direction and the carrier can be displaced by the distance between the holders of one set relative to the holders of the other set in both the longitudinal and transverse directions (FIG. 9). 3. Apparatus according to claim 2, characterized in that the cavity (13) of the carrier (11) is used as a fluid supply line. Considered publications:
German patents No. 950 718, 917 298,
872, 887 324, 525 154, 502149;
Swiss Patent No. 286 823;
U.S. Patent No. 2628468. For this purpose 2 sheets of drawings 509 518/262 3.65 © Bundesdruckerei Berlin